Semismokeless powder.



'UNiT n STATES PATENT Genres,

PnTEmo. s rinn, OF SEYMOUR, IOWA.

' seM sMoKELEss eowoeasrnorrzcnrxoiv m s part of jnetters latent No.691,919, dated J nuar as, 1902. Application filed November 26, 1900.Renewed November 25, 1901; Serial No 83,629. (No specimens.)

To all whom it may concern:

Be it known that I, PETER C. STIRE, a citizen of the United States,residing at Seymour, in the county of Wayne and State of Iowa, haveinvented a new and useful invention in Semismokeless Powder,'of whichthe following is a specification.-:

My object is to provide a powder liy com-' binin g mineral and vegetableproductsin such a. manner as to increase the maximum explosive force ofany given quantity and to diminish the minimuu'ro'f smoke when it isburned, so that the powder may be properly termed semismokeless and bewell adapted for use in firearms, blasting in mines, and for all thepurposes for which combustible explosive powder is commonly used.

Myinvention consists in inixing tlie following ingredients in about thefollowing proportions--viz., prussiate potassium, twelve (12) ounces;chlorate potassium, sixteen (16; ounces; dry meal made of grain, two 2ounces; kiln-dried wood sawdust, one 1) ounce.

sawdust may be Oornmeal is preferably used, and the wood dispensed withor comminuted charcoal substituted therefor. The ingredients are allreduced, so tha they can be readily mingled by agitation, or in anysuitable Way, so the different substances will be uniformly distributedin any 'iven quantity that may be prepared for commercial purposes andpractical use. The degree of fineness'to ,which they are reduced beforemixing them may vary to suit the different purposes for which thepowderis to be used. What I claim, and desire to secure by Lettors Patent ofthe United States, is-- An explosive powder composed of prussiatepotassium, chlorate potassium, cornmeal and wood sawdust, in the mannerset forth for the purposes stated.

PETER 0. sTiRn, Witnesses 2 A. W. MAXWELL, F. E. LLEWELLYN.

